SOLUTION: Cards numbered 1 to 50 are put in a hat. What is the probability that the first two cards chosen at random have prime numbers on them? I'm so confused I know you start off the

Question 917991: Cards numbered 1 to 50 are put in a hat. What is the probability that the first two cards chosen at random have prime numbers on them?
I'm so confused I know you start off the problem with 16/50 but I don't know what you multiply that by...
Answer by Hawksfan(61) (Show Source): You can put this solution on YOUR website!
If you pick out all the prime numbers from 1 to 50, there are 16 of them.
#primes/total number
first card 16/50

second card (16-1)/(50-1)= 15/49

now multiply the two fractions 16/50 * 15/49 = 240/2450= 24/245

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